Crockett County, Texas

Survey Area TX105• Texas

The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Crockett County, Texas. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map Unit	Acres	Drainage	Hydro Group	Dwellings	Septic
Ector-Rock outcrop complex, moist, 1 to 20 percent slopes	378K	Well drained	D	Very limited	Very limited
Ector-Rock outcrop complex, moist, 10 to 60 percent slopes	271K	Well drained	D	Very limited	Very limited
Noelke-Ector complex, 0 to 5 percent slopes	261K	Well drained	D	Very limited	Very limited
Texon-Ozona complex, 0 to 3 percent slopes	145K	Well drained	C	Very limited	Very limited
Angelo silty clay loam, 0 to 2 percent slopes	89K	Well drained	C	Somewhat limited	Very limited
Tobosa clay, 0 to 2 percent slopes	87K	Well drained	D	Very limited	Very limited
Sanderson-Upton complex, 1 to 8 percent slopes	85K	Well drained	B	Not limited	Somewhat limited
Pandale-Upton complex, 0 to 5 percent slopes	79K	Well drained	B	Not limited	Somewhat limited
Area not surveyed, access denied	77K			Not rated	Not rated
Reagan silty clay loam, 0 to 2 percent slopes	68K	Well drained	C	Not limited	Very limited
Rio Diablo silty clay loam, 0 to 2 percent slopes, rarely flooded	56K	Well drained	C	Very limited	Very limited
Tarrant-Rock outcrop complex, 1 to 15 percent slopes	42K	Well drained	D	Very limited	Very limited
Mailtrail very gravelly clay loam, 1 to 8 percent slopes	39K	Well drained	D	Very limited	Very limited
Dev very gravelly loam, 0 to 3 percent slopes, frequently flooded	23K	Well drained	A	Very limited	Very limited
Pandale gravelly loam, 0 to 3 percent slopes	15K	Well drained	B	Not limited	Somewhat limited
Paisano very gravelly loam, 1 to 8 percent slopes	12K	Well drained	D	Very limited	Very limited
Ozona-Tarrant complex, 0 to 5 percent slopes	9K	Well drained	D	Very limited	Very limited
Iraan silty clay loam, 0 to 2 percent slopes, occasionally flooded	8K	Well drained	C	Very limited	Very limited
Kinco-Ima complex, 0 to 2 percent slopes	6K	Well drained	A	Not limited	Not limited
Tarrant-Rock outcrop complex, dry, 8 to 30 percent slopes	6K	Well drained	D	Very limited	Very limited

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Mollisols

Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

Aridisols

Dry-climate soils with low organic matter. Often have caliche layers that make excavation difficult. Low shrink-swell is good for foundations.

Vertisols

High-clay soils that shrink and swell dramatically. Fertile but challenging for foundations and septic systems.

Entisols

Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

What This Means

Building & Foundations

About 76% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 85% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.

Gardening & Agriculture

Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.